If you want to find out more about Dianetics and Scientology, the best way to do this is to read an L. Ron Hubbard book on the subject. I personally recommend you read Scientology: The Fundamentals of Thought.
This book really helped me with This was a book I could read and really understand. From reading this book I realized that you could handle life by using your mind. I knew that "thought" was important and that what I "thought" influenced what I did.